/* ========== CSS Variables ========== */
:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --bg-card: #1a1a2e;
  --bg-card-hover: #22223a;
  --border: #2a2a3e;
  --border-light: #3a3a5e;
  --text-primary: #e8e8f0;
  --text-secondary: #a0a0b8;
  --text-muted: #6a6a82;
  --accent: #6c63ff;
  --accent-light: #8b83ff;
  --accent-glow: rgba(108, 99, 255, 0.3);
  --accent2: #00d4aa;
  --accent2-glow: rgba(0, 212, 170, 0.3);
  --danger: #ff4757;
  --warning: #ffa502;
  --success: #2ed573;
  --gradient-1: linear-gradient(135deg, #6c63ff, #00d4aa);
  --gradient-2: linear-gradient(135deg, #ff6b6b, #ffa502);
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.6);
  --radius: 12px;
  --radius-sm: 8px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-mono: 'SF Mono', 'Fira Code', 'Consolas', monospace;
}

/* ========== Reset ========== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  scrollbar-width: thin;
  scrollbar-color: var(--accent) var(--bg-secondary);
}

body {
  font-family: var(--font);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
}

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 3px; }

a { color: var(--accent); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent-light); }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ========== Navbar ========== */
#navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 32px;
  background: rgba(10, 10, 15, 0.92);
  border-bottom: 1px solid transparent;
  transition: padding var(--transition), border-color var(--transition);
  will-change: padding;
}

#navbar.scrolled {
  border-bottom-color: var(--border);
  padding: 10px 32px;
}

.nav-logo { font-size: 1.3rem; font-weight: 700; color: var(--accent); }

.nav-links { display: flex; gap: 32px; }
.nav-links a {
  color: var(--text-secondary); font-size: 0.9rem; font-weight: 500;
  position: relative; padding: 4px 0;
}
.nav-links a::after {
  content: ''; position: absolute; bottom: 0; left: 0; width: 0; height: 2px;
  background: var(--gradient-1); transition: width var(--transition);
}
.nav-links a:hover { color: var(--text-primary); }
.nav-links a:hover::after { width: 100%; }

.nav-toggle {
  display: none; background: none; border: none; color: var(--text-primary);
  font-size: 1.5rem; cursor: pointer;
}

/* ========== Hero ========== */
#hero {
  position: relative; min-height: 100vh; display: flex; align-items: center;
  justify-content: center; overflow: hidden;
}

#particle-canvas {
  position: absolute; top: 0; left: 0; width: 100%; height: 100%; z-index: 0;
}

.hero-content {
  position: relative; z-index: 1; text-align: center; padding: 0 24px;
}

.hero-badge {
  display: inline-block; padding: 8px 20px; border-radius: 20px;
  background: rgba(108, 99, 255, 0.1); border: 1px solid rgba(108, 99, 255, 0.3);
  color: var(--accent-light); font-size: 0.85rem; margin-bottom: 24px;
  animation: fadeInDown 0.8s ease;
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4.5rem); font-weight: 800; line-height: 1.2;
  margin-bottom: 16px; animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-title .greeting {
  display: block; font-size: 0.4em; color: var(--text-secondary); font-weight: 400;
}

.hero-title .name {
  background: var(--gradient-1); -webkit-background-clip: text;
  -webkit-text-fill-color: transparent; background-clip: text;
  cursor: pointer; position: relative; transition: opacity 0.2s;
}
.hero-title .name:hover { opacity: 0.8; }
.hero-title .name::after {
  content: '✎'; font-size: 0.3em; margin-left: 6px; opacity: 0;
  transition: opacity 0.2s; -webkit-text-fill-color: var(--accent);
}
.hero-title .name:hover::after { opacity: 1; }

.hero-tagline {
  font-size: 1.2rem; color: var(--text-secondary); margin-bottom: 28px;
  min-height: 2em; animation: fadeInUp 0.8s ease 0.4s both;
}

.cursor {
  animation: blink 1s step-end infinite; color: var(--accent);
  font-weight: 100;
}

.hero-tags {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 10px;
  margin-bottom: 36px; animation: fadeInUp 0.8s ease 0.6s both;
}

.tag {
  padding: 6px 16px; border-radius: 20px; font-size: 0.8rem;
  background: var(--bg-card); border: 1px solid var(--border);
  color: var(--text-secondary); transition: all var(--transition);
}
.tag:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }

.hero-actions {
  display: flex; gap: 16px; justify-content: center;
  animation: fadeInUp 0.8s ease 0.8s both;
}

.btn-primary {
  display: inline-block; padding: 12px 28px; border-radius: var(--radius-sm);
  background: var(--gradient-1); color: #fff; font-weight: 600; font-size: 0.95rem;
  border: none; cursor: pointer; transition: all var(--transition);
  box-shadow: 0 4px 16px var(--accent-glow);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 6px 24px var(--accent-glow); }

.btn-outline {
  display: inline-block; padding: 12px 28px; border-radius: var(--radius-sm);
  background: transparent; color: var(--text-primary); font-weight: 600; font-size: 0.95rem;
  border: 1px solid var(--border-light); cursor: pointer; transition: all var(--transition);
}
.btn-outline:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }

.btn-full { width: 100%; text-align: center; }

.scroll-indicator {
  position: absolute; bottom: 40px; left: 50%; transform: translateX(-50%);
  text-align: center; color: var(--text-muted); font-size: 0.75rem;
  animation: fadeInUp 0.8s ease 1s both;
}

.mouse {
  width: 24px; height: 38px; border: 2px solid var(--text-muted); border-radius: 12px;
  margin: 0 auto 8px; position: relative;
}

.wheel {
  width: 4px; height: 8px; background: var(--accent); border-radius: 2px;
  position: absolute; top: 6px; left: 50%; transform: translateX(-50%);
  animation: scrollWheel 2s infinite;
}

/* ========== Sections ========== */
.section {
  padding: 100px 0; position: relative;
}

.section-title {
  font-size: 2rem; font-weight: 700; margin-bottom: 48px; text-align: center;
}

.section-title .num {
  color: var(--accent); font-family: var(--font-mono); font-size: 1rem;
  margin-right: 8px;
}

/* ========== About ========== */
.about-grid {
  display: grid; grid-template-columns: 1fr 1.5fr; gap: 32px;
}

.about-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 32px; transition: all var(--transition);
}
.about-card:hover { border-color: var(--border-light); transform: translateY(-4px); box-shadow: var(--shadow); }

.photo-card { text-align: center; }

.photo-placeholder { position: relative; display: inline-block; margin-bottom: 20px; }

.avatar-ring {
  width: 120px; height: 120px; border-radius: 50%; padding: 3px;
  background: var(--gradient-1);
}

.avatar-inner {
  width: 100%; height: 100%; border-radius: 50%; background: var(--bg-card);
  display: flex; align-items: center; justify-content: center; font-size: 3rem;
}

.status-dot {
  position: absolute; bottom: 4px; right: 4px; width: 16px; height: 16px;
  background: var(--success); border-radius: 50%; border: 3px solid var(--bg-card);
  animation: pulse 2s infinite;
}

.quick-info h3 { font-size: 1.3rem; margin-bottom: 4px; cursor: pointer; }
.quick-info h3:hover { color: var(--accent); }
.quick-info .subtitle { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 16px; }

.info-items { text-align: left; }
.info-item {
  display: flex; justify-content: space-between; padding: 8px 0;
  border-bottom: 1px solid var(--border);
}
.info-item:last-child { border-bottom: none; }
.info-item .label { color: var(--text-muted); font-size: 0.85rem; }
.info-item .value { font-weight: 600; font-size: 0.9rem; }

.bio-card h3 { margin-bottom: 16px; color: var(--accent); }
.bio-card p { color: var(--text-secondary); margin-bottom: 24px; line-height: 1.8; }

.stats-row {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px;
  padding-top: 20px; border-top: 1px solid var(--border);
}

.stat { text-align: center; }
.stat-num {
  display: block; font-size: 2rem; font-weight: 800;
  background: var(--gradient-1); -webkit-background-clip: text;
  -webkit-text-fill-color: transparent; background-clip: text;
}
.stat-label { font-size: 0.8rem; color: var(--text-muted); }

/* ========== Skills ========== */
.skills-layout {
  display: grid; grid-template-columns: 1fr 1.5fr; gap: 48px; align-items: start;
}

.radar-chart-container {
  display: flex; align-items: center; justify-content: center;
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px;
}

#radar-chart { max-width: 100%; }

.skill-category { margin-bottom: 28px; }
.skill-category h3 {
  font-size: 1rem; color: var(--accent); margin-bottom: 16px;
  padding-bottom: 8px; border-bottom: 1px solid var(--border);
}

.skill-item { margin-bottom: 12px; }
.skill-header {
  display: flex; justify-content: space-between; font-size: 0.85rem;
  margin-bottom: 6px;
}
.skill-header span:first-child { color: var(--text-primary); }
.skill-header span:last-child { color: var(--accent); font-family: var(--font-mono); }

.skill-bar {
  height: 6px; background: var(--bg-secondary); border-radius: 3px; overflow: hidden;
}

.skill-fill {
  height: 100%; width: 0; border-radius: 3px;
  background: var(--gradient-1); transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.skill-tags {
  display: flex; flex-wrap: wrap; gap: 8px;
}

.skill-tag {
  padding: 6px 14px; border-radius: 6px; font-size: 0.8rem;
  background: var(--bg-secondary); border: 1px solid var(--border);
  color: var(--text-secondary); transition: all var(--transition);
}
.skill-tag:hover { border-color: var(--accent); color: var(--accent); }

/* ========== Projects ========== */
.projects-toolbar {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 32px; flex-wrap: wrap; gap: 16px;
}

.filter-tabs { display: flex; gap: 8px; flex-wrap: wrap; }

.filter-btn {
  padding: 8px 18px; border-radius: 20px; font-size: 0.85rem;
  background: var(--bg-card); border: 1px solid var(--border);
  color: var(--text-secondary); cursor: pointer; transition: all var(--transition);
}
.filter-btn:hover { border-color: var(--accent); color: var(--text-primary); }
.filter-btn.active {
  background: var(--accent); border-color: var(--accent); color: #fff;
}

.btn-add {
  padding: 10px 22px; border-radius: var(--radius-sm); font-size: 0.9rem;
  background: var(--gradient-1); color: #fff; border: none; cursor: pointer;
  font-weight: 600; transition: all var(--transition);
  box-shadow: 0 4px 16px var(--accent-glow);
}
.btn-add:hover { transform: translateY(-2px); box-shadow: 0 6px 24px var(--accent-glow); }

.projects-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); gap: 24px;
}

.project-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
  cursor: pointer; position: relative; will-change: transform;
}
.project-card:hover {
  transform: translateY(-6px); border-color: var(--border-light);
  box-shadow: var(--shadow-lg);
}

.project-cover {
  height: 180px; background: var(--bg-secondary); display: flex;
  align-items: center; justify-content: center; font-size: 3rem;
  position: relative; overflow: hidden;
}
.project-cover img { width: 100%; height: 100%; object-fit: cover; }

.project-cover::after {
  content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 60px;
  background: linear-gradient(transparent, var(--bg-card));
}

.project-status {
  position: absolute; top: 12px; right: 12px; padding: 4px 12px; border-radius: 12px;
  font-size: 0.7rem; font-weight: 600; z-index: 1;
}
.project-status.completed { background: rgba(46, 213, 115, 0.2); color: var(--success); }
.project-status.in-progress { background: rgba(255, 165, 2, 0.2); color: var(--warning); }
.project-status.planned { background: rgba(108, 99, 255, 0.2); color: var(--accent); }

.project-category-badge {
  position: absolute; top: 12px; left: 12px; padding: 4px 10px; border-radius: 12px;
  font-size: 0.7rem; background: rgba(10, 10, 15, 0.7); color: var(--text-secondary);
  backdrop-filter: blur(4px);
}

.project-body { padding: 20px; }
.project-body h3 { font-size: 1.1rem; margin-bottom: 8px; }
.project-body p { color: var(--text-muted); font-size: 0.85rem; line-height: 1.6; margin-bottom: 12px; }

.project-tech { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 12px; }
.project-tech span {
  padding: 3px 10px; border-radius: 4px; font-size: 0.7rem;
  background: rgba(108, 99, 255, 0.1); color: var(--accent-light);
}

.project-actions { display: flex; gap: 8px; }

.project-actions button {
  flex: 1; padding: 8px; border-radius: var(--radius-sm); font-size: 0.8rem;
  border: 1px solid var(--border); background: var(--bg-secondary);
  color: var(--text-secondary); cursor: pointer; transition: all var(--transition);
}
.project-actions button:hover { border-color: var(--accent); color: var(--text-primary); }
.project-actions .btn-demo {
  background: var(--accent); border-color: var(--accent); color: #fff;
}
.project-actions .btn-demo:hover { background: var(--accent-light); }
.project-actions .btn-del:hover { border-color: var(--danger); color: var(--danger); }

.empty-state {
  text-align: center; padding: 80px 20px; color: var(--text-muted);
}
.empty-icon { font-size: 4rem; margin-bottom: 16px; opacity: 0.5; }

/* ========== Contact ========== */
.contact-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 32px;
}

.contact-desc { color: var(--text-secondary); margin-bottom: 24px; }

.contact-links { display: flex; flex-direction: column; gap: 12px; }

.contact-card {
  display: flex; align-items: center; gap: 16px; padding: 16px;
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-sm);
  transition: all var(--transition);
}
.contact-card:hover { border-color: var(--accent); transform: translateX(4px); }

.contact-icon { font-size: 1.5rem; }
.contact-label { font-size: 0.75rem; color: var(--text-muted); }
.contact-value { font-size: 0.9rem; color: var(--text-primary); }

.contact-form-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 32px;
}
.contact-form-card h3 { margin-bottom: 20px; color: var(--accent); }

.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 0.8rem; color: var(--text-muted); margin-bottom: 6px; }

.form-group input, .form-group textarea, .form-group select {
  width: 100%; padding: 10px 14px; background: var(--bg-secondary);
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  color: var(--text-primary); font-size: 0.9rem; font-family: var(--font);
  transition: border-color var(--transition);
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
  outline: none; border-color: var(--accent);
}
.form-group textarea { resize: vertical; }
.form-group select { cursor: pointer; }
.form-group select option { background: var(--bg-card); }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* ========== Footer ========== */
footer {
  text-align: center; padding: 32px; border-top: 1px solid var(--border);
  color: var(--text-muted); font-size: 0.85rem;
}

/* ========== Modal ========== */
.modal-overlay {
  display: none; position: fixed; inset: 0; z-index: 2000;
  background: rgba(0, 0, 0, 0.7); backdrop-filter: blur(8px);
  align-items: center; justify-content: center; padding: 24px;
}
.modal-overlay.active { display: flex; }

.modal {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  width: 100%; max-width: 560px; max-height: 90vh; overflow-y: auto;
  animation: modalIn 0.2s ease;
}
.modal.modal-lg { max-width: 900px; }

.modal-header {
  display: flex; justify-content: space-between; align-items: center;
  padding: 20px 24px; border-bottom: 1px solid var(--border);
}
.modal-header h3 { font-size: 1.1rem; }

.modal-close {
  background: none; border: none; color: var(--text-muted); font-size: 1.2rem;
  cursor: pointer; transition: color var(--transition);
}
.modal-close:hover { color: var(--danger); }

.modal-body { padding: 24px; }
.modal-footer {
  display: flex; justify-content: flex-end; gap: 12px;
  padding: 16px 24px; border-top: 1px solid var(--border);
}

.demo-container {
  padding: 16px; height: 600px;
}
.demo-container iframe {
  width: 100%; height: 100%; border-radius: var(--radius-sm);
  background: #fff;
}

.detail-body { padding: 24px; }

.detail-body .detail-cover {
  width: 100%; height: 200px; border-radius: var(--radius-sm);
  background: var(--bg-secondary); display: flex; align-items: center;
  justify-content: center; font-size: 4rem; margin-bottom: 20px; overflow: hidden;
}
.detail-body .detail-cover img { width: 100%; height: 100%; object-fit: cover; }

.detail-body h2 { font-size: 1.5rem; margin-bottom: 8px; }
.detail-body .detail-desc { color: var(--text-secondary); line-height: 1.8; margin-bottom: 20px; }
.detail-body .detail-section { margin-bottom: 16px; }
.detail-body .detail-section h4 { color: var(--accent); font-size: 0.9rem; margin-bottom: 8px; }
.detail-body .detail-highlights { color: var(--text-secondary); }
.detail-body .detail-links { display: flex; gap: 12px; margin-top: 16px; }

/* ========== Toast ========== */
.toast {
  position: fixed; bottom: 32px; right: 32px; z-index: 3000;
  padding: 14px 24px; border-radius: var(--radius-sm);
  background: var(--bg-card); border: 1px solid var(--border);
  color: var(--text-primary); font-size: 0.9rem;
  transform: translateY(100px); opacity: 0;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: var(--shadow-lg);
}
.toast.show { transform: translateY(0); opacity: 1; }
.toast.success { border-left: 3px solid var(--success); }
.toast.error { border-left: 3px solid var(--danger); }

/* ========== Animations ========== */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

@keyframes scrollWheel {
  0% { opacity: 1; transform: translateX(-50%) translateY(0); }
  100% { opacity: 0; transform: translateX(-50%) translateY(14px); }
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(46, 213, 115, 0.4); }
  50% { box-shadow: 0 0 0 8px rgba(46, 213, 115, 0); }
}

@keyframes modalIn {
  from { opacity: 0; transform: scale(0.95) translateY(20px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

/* Reveal on scroll */
.reveal {
  opacity: 0; transform: translateY(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ========== Responsive ========== */
@media (max-width: 900px) {
  .nav-links { display: none; }
  .nav-links.open {
    display: flex; flex-direction: column; position: absolute;
    top: 100%; left: 0; right: 0; background: var(--bg-secondary);
    padding: 20px; gap: 16px; border-bottom: 1px solid var(--border);
  }
  .nav-toggle { display: block; }

  .about-grid, .contact-grid { grid-template-columns: 1fr; }
  .skills-layout { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: 1fr; }

  .hero-title { font-size: 2rem; }
  .section { padding: 60px 0; }
}

@media (max-width: 600px) {
  #navbar { padding: 12px 16px; }
  .container { padding: 0 16px; }
  .hero-tags { gap: 6px; }
  .tag { font-size: 0.7rem; padding: 4px 10px; }
  .hero-actions { flex-direction: column; align-items: center; }
  .stats-row { grid-template-columns: repeat(3, 1fr); gap: 8px; }
  .stat-num { font-size: 1.5rem; }
}

/* ========== AI Power Section ========== */
.ai-power-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 32px;
}
.ai-terminal-card {
  background: #0d1117;
  border: 1px solid #30363d;
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.terminal-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  background: #161b22;
  border-bottom: 1px solid #30363d;
}
.terminal-dots { display: flex; gap: 6px; }
.terminal-dots .dot { width: 10px; height: 10px; border-radius: 50%; }
.terminal-dots .dot.red { background: #ff5f57; }
.terminal-dots .dot.yellow { background: #febc2e; }
.terminal-dots .dot.green { background: #28c840; }
.terminal-title { font-size: 0.8rem; color: #8b949e; font-family: var(--font-mono); }
.terminal-badge {
  margin-left: auto;
  font-size: 0.65rem;
  padding: 2px 8px;
  background: #238636;
  color: #fff;
  border-radius: 10px;
  animation: pulse-badge 2s ease-in-out infinite;
}
@keyframes pulse-badge {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}
.terminal-body {
  padding: 16px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  line-height: 1.6;
  overflow-y: auto;
  flex: 1;
  max-height: 380px;
}
.terminal-line { margin-bottom: 4px; white-space: pre-wrap; word-break: break-all; }
.terminal-line.system { color: #79c0ff; }
.terminal-line.output { color: #c9d1d9; }
.terminal-cursor {
  display: inline-block;
  width: 8px;
  height: 14px;
  background: #58a6ff;
  animation: blink-cursor 1s step-end infinite;
  vertical-align: text-bottom;
}
@keyframes blink-cursor {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

.ai-capabilities {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.ai-cap-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  transition: var(--transition);
  opacity: 0;
  transform: translateX(30px);
}
.ai-cap-card.visible {
  opacity: 1;
  transform: translateX(0);
}
.ai-cap-card:hover {
  border-color: var(--accent);
  box-shadow: 0 0 20px var(--accent-glow);
  transform: translateY(-2px);
}
.ai-cap-card .cap-icon {
  font-size: 1.6rem;
  margin-bottom: 8px;
}
.ai-cap-card h4 {
  font-size: 1rem;
  margin-bottom: 6px;
  color: var(--text-primary);
}
.ai-cap-card p {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 10px;
}
.cap-tags { display: flex; gap: 6px; flex-wrap: wrap; }
.cap-tags span {
  font-size: 0.7rem;
  padding: 2px 8px;
  background: rgba(108, 99, 255, 0.15);
  color: var(--accent-light);
  border-radius: 4px;
  font-family: var(--font-mono);
}
.cap-bar {
  height: 3px;
  background: var(--bg-secondary);
  border-radius: 2px;
  margin-top: 12px;
  overflow: hidden;
}
.cap-bar .cap-fill {
  height: 100%;
  width: 0;
  background: var(--gradient-1);
  border-radius: 2px;
  transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}
.ai-cap-card.visible .cap-fill { width: var(--target); }

/* AI Stats */
.ai-stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.ai-stat {
  text-align: center;
  padding: 24px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: var(--transition);
}
.ai-stat:hover {
  border-color: var(--accent2);
  box-shadow: 0 0 20px var(--accent2-glow);
}
.ai-stat-num {
  display: block;
  font-size: 2.2rem;
  font-weight: 700;
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-family: var(--font-mono);
}
.ai-stat-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 4px;
}

@media (max-width: 900px) {
  .ai-power-grid { grid-template-columns: 1fr; }
  .ai-stats-row { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .ai-stats-row { grid-template-columns: repeat(2, 1fr); }
  .ai-stat-num { font-size: 1.6rem; }
}